| Patents for G11B 11 - Recording on, or reproducing from, the same record carrier wherein for these two operations the methods or means are covered by different main groups of groups or by different subgroups of group; Record carriers therefor (14,351) |
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| 06/05/2001 | US6243336 Optical disc system having servo motor and servo error detection assembly operated relative to monitored quad sum signal and focus capture method for use in same |
| 06/05/2001 | US6243334 Information reading and writing device for optical disk |
| 06/05/2001 | US6243333 Magneto-optical disk drive |
| 06/05/2001 | US6243330 Medium, apparatus, and method related to encryption resultant information |
| 06/05/2001 | US6243327 Magneto-optical disk system having a relation between a numerical aperture of an objective lens and the thickness of a cover layer |
| 06/05/2001 | US6243326 Recording and reproduction device for a magneto-optic recording medium capable of recording information according to optical super-resolution |
| 05/31/2001 | WO2001039189A1 Device for writing information onto an information carrier |
| 05/31/2001 | WO2001039182A1 Cleaning disc, magneto-optical disc apparatus and recording/reproducing apparatus |
| 05/31/2001 | WO2000062285A3 Laser device for the emission and collimation of a laser beam |
| 05/31/2001 | US20010002187 Disk device |
| 05/31/2001 | US20010002184 Disk Device |
| 05/30/2001 | EP1103961A2 Cartridge-contained recording medium |
| 05/30/2001 | EP1103047A1 Pre-engraved substrate for magnetic, magneto-optical or phase transition optical disc, functioning by first surface recording in the lands, manufacturing method and resulting disc |
| 05/30/2001 | CN1297225A Optical head, optical detector, recording and reproducing device and focus error detecting method |
| 05/30/2001 | CN1066561C Magneto-optical recording medium for realizing super resolution and reproducing method using medium |
| 05/29/2001 | US6240056 Information recording and reproduction apparatus using a pulsed laser light |
| 05/29/2001 | US6239940 Disk device and disk device calibrating method |
| 05/29/2001 | US6238763 Rewritable optical data storage disk having enhanced flatness |
| 05/29/2001 | CA2058202C Magneto-optical recording medium and method for reproducing signal using an external magnetic field from such a medium |
| 05/29/2001 | CA2058173C Method of reproducing signals recorded on a magnetooptic recording medium |
| 05/25/2001 | WO2001037499A1 Light controlling apparatus |
| 05/25/2001 | WO2001037274A1 Optical disk and optical disk device |
| 05/24/2001 | US20010001604 Optical reproduction method and optical information device |
| 05/23/2001 | EP1102285A2 Magneto-optical member |
| 05/23/2001 | EP1102255A1 Light signal detection circuit |
| 05/23/2001 | CN1296615A Low-birefringence optical fiber for use in optical data storage system |
| 05/17/2001 | WO2001035399A1 Optical information storage and optical head |
| 05/17/2001 | WO2001035396A1 Magnetic media patterning utilizing heat-induced phase transition |
| 05/17/2001 | US20010001264 Optical information recording/reproducing apparatus |
| 05/16/2001 | CN1295710A Optical data storage system utilizing polarization maintaining optical fiber |
| 05/16/2001 | CN1295709A Optical data storage system with means for reducing noise from spurious reflections |
| 05/16/2001 | CN1295708A Low noise optical storage system based on an optical polarimetric delay line |
| 05/16/2001 | CN1295678A Integrated micro-optical systems |
| 05/16/2001 | CN1295318A Magnetic head and magnetic head unit |
| 05/15/2001 | US6233654 Recording apparatus having a partially exchangeable disk array, a loading/unloading device, and a control device and which uses a disk-like recording medium |
| 05/15/2001 | US6233214 Information data recording/reproducing method |
| 05/15/2001 | US6233208 Tracking servo apparatus for optical disc |
| 05/15/2001 | US6233119 Shortened rail glide head |
| 05/10/2001 | WO2001033562A1 Optical head and optical head feeder |
| 05/10/2001 | WO2001032746A1 Method of producing polycarbonates |
| 05/10/2001 | US20010000999 Apparatus for recording and/or reproducing information and/or from optical information record disk |
| 05/10/2001 | US20010000998 Apparatus for recording and/or reproducing information and/or from optical information record disk |
| 05/10/2001 | US20010000997 Apparatus for recording and/or reproducing information and/or from optical information record disk |
| 05/10/2001 | DE19952848A1 Verfahren zur Herstellung von Polycarbonaten A process for the preparation of polycarbonates |
| 05/10/2001 | DE10020460A1 Magnetooptischer Aufzeichnungsträger und magnetooptische Aufzeichnungs- und Wiedergabevorrichtung A magneto-optical recording medium and magneto-optical recording and reproducing apparatus |
| 05/09/2001 | EP1098306A2 Magneto-optical storage medium and recording method thereof |
| 05/09/2001 | CN1065646C Information recording method, reproducing method, and reproducing appts. |
| 05/08/2001 | US6230255 Communications processor for voice band telecommunications |
| 05/08/2001 | US6229786 Optical recording medium using land/groove recording |
| 05/08/2001 | US6229784 Optical disk having an attribute which designates whether a recording area permits rewriting or not |
| 05/08/2001 | US6229783 Optical recording device having a medium with two superimposed levels and method for reading |
| 05/08/2001 | US6229782 High numerical aperture optical focusing device for use in data storage systems |
| 05/08/2001 | US6229778 Information recording and/or reproducing apparatus for optical disks having various protective layer thicknesses |
| 05/08/2001 | US6229777 Information recording medium, apparatus and control method therefor |
| 05/08/2001 | US6228482 Magneto-optic recording medium with reduced demagnetizing field threshold |
| 05/02/2001 | EP1096495A2 Information recording apparatus and information recording method |
| 05/02/2001 | EP1096492A2 Optical rotating recording medium, address information recording method, address information recovery method, optical recording apparatus, optical reproducing apparatus, and optical recording/reproducing apparatus |
| 05/02/2001 | EP1096486A2 Magneto-optical recording medium |
| 05/01/2001 | US6226257 Optical information storage medium having lands and grooves both serving as recording tracks |
| 05/01/2001 | US6226239 Optical information recording and reproducing apparatus for multiple layer recording medium |
| 05/01/2001 | US6226234 Magneto-optic recording medium and reproducing method for reproducing magnetic domain in enlarged form on a reproducing layer |
| 05/01/2001 | US6226233 Magneto-optical system utilizing MSR media |
| 05/01/2001 | US6224959 Optical disc |
| 04/27/2001 | CA2324676A1 Magneto-optical member |
| 04/26/2001 | US20010000483 Nonmagnetic layer is thin enough to allow magnetostatic bond between the recording layer and the reproducing layer; medium can mask a mark adjacent to a mark to be reproduced, to improve reproduction output |
| 04/25/2001 | EP1094461A2 Controlling the copying of information from one medium to another one |
| 04/25/2001 | EP1094455A2 Magneto-optical recording medium |
| 04/25/2001 | EP1094451A2 Seek actuator for optical recording |
| 04/25/2001 | CN1292945A Optical microswitch having electrostatic microactuator and method for use thereof |
| 04/25/2001 | CN1292551A Data recording device and method capable of suppressing direct current component |
| 04/25/2001 | CN1292546A Method and accessories for manufacturing slider |
| 04/24/2001 | US6223247 Disk shaped recording medium and drive apparatus utilizing logical block address conversion and start addresses which increase from inner and outer circumferential sides of the medium |
| 04/24/2001 | US6222799 High-performance information processing apparatus having multitasking functions |
| 04/24/2001 | US6222797 Position adjustment method of a magnetic head using magneto-optical recording medium, and optical recording medium |
| 04/24/2001 | US6221219 For rewritable high-density recording medium |
| 04/19/2001 | WO2001027919A1 Magnetooptic recording medium and magnetooptic recorder |
| 04/19/2001 | WO2001027916A1 Phosphorous and fluorine containing compounds as magnetic media lubricants |
| 04/17/2001 | US6219332 Slider for optical disc data storage system |
| 04/17/2001 | US6219327 Optical disk player |
| 04/17/2001 | US6219308 Optical disk system having objective lens with a numerical aperture related to thickness of protective layer |
| 04/17/2001 | US6218086 In thin film, using tip; process control |
| 04/17/2001 | US6217968 Optical recording medium, optical head and optical recording device |
| 04/17/2001 | US6216529 Glide head with tapered trailing end |
| 04/12/2001 | WO2001026108A1 Magneto-optic disc recording and/or reproducing device |
| 04/11/2001 | EP1091370A2 Magnetic optical member and method of producing the same |
| 04/11/2001 | EP1091356A2 Bias voltage controlling apparatus, information reproducing apparatus and information recording apparatus |
| 04/11/2001 | EP1091355A2 Recording medium, recording apparatus and recording method |
| 04/11/2001 | EP1091352A2 Focus servo controlling apparatus, information reproducing apparatus and information recording apparatus |
| 04/11/2001 | CN1290933A Optic recording medium and optic disc cassette |
| 04/10/2001 | US6215758 Recording medium |
| 04/10/2001 | US6215608 Hardware inhibit for a disk drive digital servo control system |
| 04/10/2001 | US6214482 Silica-mixed oxide |
| 04/05/2001 | DE19946646A1 Use of strong field iron complex compounds showing a Leisst effect for the holographic, thermal and optical signal recording and as a thermal optical switch with molecular dissolution |
| 04/04/2001 | EP1089267A1 Tracking servo apparatus for optical discs |
| 04/04/2001 | EP1089266A1 Tracking servo apparatus for optical discs |
| 04/04/2001 | CN1290011A Device for recording on media and method for making records |
| 04/04/2001 | CA2313768A1 Magnetic optical member and method of producing the same |
| 04/03/2001 | US6212157 Apparatus for suppressing warping optical disk and optical disk apparatus |
| 04/03/2001 | US6212153 High NA solid catadioptric focusing device having a flat kinoform phase profile |
| 04/03/2001 | US6212152 Optical information detection apparatus |